Method of making sash sustainers



INERS s-Sheet E. H. ELLISON lMETHOD OF MAKING SASH SUSTA Orgiglgl FiledApril 27, 1926 2 Sheet lwentoz A50/V.

Afm H al crm Mmmm@ .www

May 17, 1932.

V 25 duced in large numbers at Patented May 17, 1932 f f EDWARD yH1.

MnNTs, To AUsTRAL WINDOW COMPANY, or NEW YORK,

MATNE Yoriginal application mea Aprn 27,

This invention. relates toimprovements in sash holders of thespring-pressedroller type wherein lthe rollers are permitted to roll Yfreely as the window is raised, but are held v from rotation as thewindow is lowered,

whereby to exert frictional resistance. to the downward movement of thewindow, and to methods of manufacturing the same.

This yapplication isla division 'of'U. S

application serial No, manca-sied Api-1127',

ltis an object of myv invention to provide an improved one-way clutchingarrangement for the roller and'to provider a roller 'housis ing for theroller and its clutch which may be readily yand inexpensivelymanufactured from `sheet metal. 1

It is a further object of my invention to A provide a method ofmanufacturing the sash i holder and particularly thefhousing thereforaccording to my invention with aV minimum of individual workmanship andamaximum of automatic, or semi-automatic'machine work, rwhereby the samemay be proa relatively small -cost per unit, 4and without the employmentof skilled-labor.

Itis afurther object provide an improved housing holder, and a method ofmanufacturing the same from sheet metal with the minimum wastage ofmaterial in forming the individual blanks from a strip', and generally,to cheapen the quality of the article. J

Still further obj ects vwill be apparent from the specification. i

The features of noveltywhich I believe to be characteristic -of my`invention arel set forth withV particulari-ty in the appended claims.vMy invention itself, however, both as to its underlying principlesand-as to its practical embodiment, will best be under-- stood byreference to .the speciiicationand accompanying'drawings, in which,

Figure 1 is aside elevation 'of afwindotvV sash showing my improved sashholder Vapplied -to the edge thereof, aY portion only of the sash beingvshown; y p 5 A Figure 2 is a section taken on the line 2-2METHODOF'MAKVING'SASH sUsTAINERs ofl my invention to forthe sashV frontelevations ofthe. main the cost of manufacture. without impairing frontelevatlons of the oating ,secured by means of al screw VAn abutmentELLrsoN, oNJAivinsTowN, NnwfYO'RK, AssreNon, BY nsNn -AssrGN- N, Y., ACORPORATION or 1926, Serialv No. 104,896. tlJivded.` and thisapplicationv led April V9,

192s. seran No. 268,506.

of Figure `1,'the roller housing-being shown inside elevation and innormal operative position; f f Figure 3 is a transverse section throughthe rollers 'and roller'housing showing the rela` tion of the floatingroller, the Xed4 roller, and housing, the view being'taken on line-'ofFigurel; f. f` 'Y Figure 4 isa'horizontalsection taken..` on linea-Ll'of Figure-3;

Figure 5 is a plan view of a pair of blanks from which theroller'housing is constructed, before being cut fromthe strip, the upperblank being shown in full lines and the lower dotted; f f `Figures Gand7- show theappearance-.of

the blankafter-the first bending operation thereof has been completed,'Figure-6 lbeing a yfront elevation and Figure Y7 a section onV lines7-7 of Figure 6. -x 'i Figures 8,.'9 and 10 are respectively, 4side andfront-elevationsand a pl'an'ofV the partially completed" housing afterthefsides of the same haveY been bent into shape; Figures 11,12- and'13are respectively side and frontelevations and-a plan of the housingafter the lrear/wall thereof has been ,brought into form; f

' Figure 14./is aside elevation of the'housthe side wall ats-'perforatedfor ing showing thel roller shaft, i

Figures 15 `andr16 are respectively side and roller; Figures 17 and 18are respectively side and roller; f Figure 19 is a plan view of theyspring blank which is-part of the complete assembly;

Figure 2O isa sidevelevation ofthe' completel sash device.

In the'drawi'ngs, 1 indicates a windowsash the housing Sfof therollerdevioe is posiend of a spring 4 the upper endof which is 5 to thesash. for the spring slightly above its flexing point is provided by thehead of a. wood screw 6 sunk into the sash. The spring yis provided with'an opemng .7 somewhat having a depression or 'cut-out :portion 2`withiirits upright v'side edge within whlch vtioned', the housing beings-ecured to'the lower Astamp vof the housingf its center at a ..8whileradius has `its center at 22 between .the axes ofthe two rollers,both radii being centered 1in the axes of the rollers when in theposition shown smaller than thehead of screw 6 to allow a screw driverto be inserted through the hole into the slotted head of the screw tomove the same for adjustment purposes.

The main roller is indicated at 8, the same being mounted on a suitableshaft v9 which passes through the side walls 10 of the housing. Thehousing has a rear wall` 11 provided with a downwardly extendingtail-like extension 12 bent towards thefront end of the housing. Therear wall is formed ina manner to provide a gradually decreasingdistance between it and the fixed roller 8 whereby a wedging space isformed for a floating roller 13.

V.- The floating roller tends to wedge between Athe main roller 8 andthe rear wall 11 when the main roller 8 is turned in a clockwisedirection as viewed in the drawings, or in other words, when the sash isbeing lowered. The main roller is thereby prevented from rotating and,inasmuch as the spring 4 presses the roller against the window casing,sliding friction will be exerted between the window casing and roller 8as will be readily understood. Upward movement of the sashv will causethe roller 8`to rotate in a counter-clockl:wise direction and elevatethe floating roller 13 sufficiently to prevent wedging of the samebetween the roller 8 and rear wall 11V of the housing as will likewisebe readily understood. The floating roller may if desired'be providedVwith serrations 14 preferably .spirally arrangedto give a bettergripping actionto the same.

The manner of making the housing 3 will now be explained. Y The firstoperation is to from a sheet of metal a blank of the form shown inFigure 5. This blank consists of a body 15 having a downwardly extend-Ving part or tongue 16. spaced extensions or wings 17 on the oppositeedge, and side portions 18. The first operation of bending the blankinto form isto bend over the parts 17 as indicated in Figures 6 and 7The next operation isto bend over the side wings 18 of the housing 3 asshown in Figures 8, 9 and 10. The rear wall 11 and lip `or extension 12are then formed tothe shape shown in Figure 11 by pressing body 1 5 andextension 16. 'Referring to Figure 3, it will be seen that the innersurface of the rear wall hes inthe arcs of ltwo circles, having radii 19andh 2O respectively. The radius 19 has point 21 beyond the main rollerplane passing through the in VFigure 3.

. By referring to Figure 5, it will be seen that there will bepractically no wastage of the sheet metal 30` from which the blanks arestruck, except for margin. portion 31, if

thefdepthof tongue 16 and wings 17 are ing,

and 13 would be turned out.

equal, and if the width of tongue 16 is less than the space betweenwings 17. It is of course necessary to leave a small margin or spacebetween blanks to assure a clean stam as will be readily understood.This economy of material results from the particular bending operationsperformed to transform the blank into final shape, which have workedoutr to .produce this eect. That is to say, the disposition of thevarious wingsandltongues, or other extending portions ofthe blank, andthe bending operations necessary with-any particular shape of blank anddisposition of wings, are all interrelated and are related to thewastage of material in cutting blanks, and I have described what Ibelieve to be the most economical arrangement a'nd process from allstandpoints, producing the most economical product.

It will be seen that, in accordance with my z;

`othermachine which bends parts 18 into position and nally they may befed into another machine which bends the rear wall 11 vto 'final form.vWhile Iv have spoken of feeding the blanks fromone machine intoanother, it will be` clearl that successive stagesl ofthe same machinemay perform the various operations, Vin whichl case strip metal would befed into the input of the machine andthe finished housing as showninFiguresll, 12

If holes have been punched at the proper points in the blank, eitherbefore or after the various forming operations, shaft 9 may be insertedthrough one side wall 10, through roller 8 properly positioned and otherside of wall 10, and retained therein 1n any suitable way as forinstance, by forming a head on shaft 9 before insertion in the housing3, and iattening the other and after the shaft is tening both ends.Floating roller 13, must of course be placed in the housing beforemounted main roller 8 in position.

Spring blank 22 will be bent or otherwise formed to the proper shape,and'may be attached to housing 3 in anysuitable manner as, for example,by rivets 23 or welding, after which the device is ready for attachmentto the window sash as shown.

The operationof the arrangement will be A' clear from the followingdescription: Asthe sash is moved upward, main roller 8 turns in acounter-clockwise direction, as seen in Figure 3, thereby liftingfloating roller 13,

.withthe result that main roller 8 turns freely 'i through the*4properly positioned or by flat-f' These blanks may then $3.90

, rangement permits firmly and positively locked by the floating.

in a counter-clockwise direction. When it is attempted to rotate roller8 in a clockwise direction, as by lowering the window, floating roller13 is turned in a counter-clockwise direction, and passes downward inthe housing. The rear wall is aV cam-like surface, which, consideredfrom its upper end, gradually approaches the surface of the main roller8, the lower portion of the `cam surface approaching the rollers surfacemore 4rapidly than the upper portion, since it is an arc of smallerradius. The size of the floating roller 13 is such between the mainroller 8 and the surface of the rear wall 1 about midway the length ofthe latter as shown in Figure 3. This arthe main roller 8 to be rolleras will now be readily appreciated.

It is to be noted at this time that the curvature of rear wall 11 asshown provides for a much more gradual wedging action by roller 13 thanwould take place if rear wall 11 were a surface normal to the diameterof main roller 8. This results in a more positive locking engagement ofmain roller 8, and decreases the possibility of failure of the sashholder to hold the sash in position, thereby producing an articlesuperior to that having a. straight rear wall.

What I claim is:

1.l The method of manufacturing a housing for window sashsustainerswhich coinprises cutting an entire housing blank from` asheet, bending a pair of portions of said blank through substantially90", and bending another pair of portions ofv said blank, includingthose portions already bent, through substantially 90O toward each otherto form top, side and rear walls, the body of said blank to form asurface concave inward. ,Y

2. The method of forming a housing for a window sash sustainer from ablank of greater width than depth and having a projecting tongue on oneside and a pair of projecting spaced wings on the other, which comprisesbending said wings into angular relation with saidbody, bending thesides of said body carrying said wings into spaced parallel relationwith each other, and bending that portion of the blank between thespaced parallelY portions into an arc concave inward.

3. The method of forming a housing Jfor a window sash sustainerV whichcomprises forming from sheet material a blank of greater width thandepth and having on one side a projecting tongue and on the other a pairof spaced projecting wings, the width of said tongue being less than thespace between said wings, bending said wings into angular relation withsaid body, bending the sides of said body carrying said wings into thatit begins to wedgel and bending spaced parallel relation with eachother, and bending said body between said parallel portions into an arcconcave inwardly.

4. The method of forming a window sash sustainer which comprises formingfrom sheet material a blank of greater width than depth-and having onone side. a projecting tongue and on the other a pair of spaced.projecting wings, the width of said tongue being less than the spacebetween said wings, andthe ldepth of said wings and said tongue beingsubstantially equal, bending said wings into angular relation with saidbody, and bending the sides of said body carrying said wings into spacedparallel relation with each other. Y

5. The method of forming a housing for a window sash sustainer whichcomprises forming from sheet material ablank of greater width than depthand having on one side a projecting tongue and on the other a pair ofspaced proj ect-ing wings, the width of said tongue being less than thespace between said wings, and the depth of said wings and 'said' tonguebeing substantially equal, bending said wings into angular relation withsaid body, bending the sides of said body carrying said wings intospaced parallel relation with each other, and bending said body betweensaid parallel portions into an arc concave inwardly.

housing for a 6. The method of forming a housing of the Y classdescribed which comprises forming from 'sheet material a blank ofgreater width than vdepth and having on one side a projecting tongue andon the other a pair of spaced projecting wings, the width ofsaid tongue'being less than the space between said wings, and the depth of saidwings and said tongue being substantially equal, enabling the tongue ofone ,blank t0v be material in the space between the ears of thepreceding blank, bending said wings into angular relation with said bodyalong a horizontal axis, bending the sides of said body towards eachother along a parallel vertical axis carrying said wings into end to endrelation with each other, and bending said body between said parallelportions into an arc, concave inwardly. Y

In testimony whereof I aiix my signature.

EDWARD H. ELLISON.

